Method test_trackfd_neg1

Lib/test/test_mmap.py:307–317

(self)

        self.assertEqual(os.stat(TESTFN).st_size, size)

    def test_trackfd_neg1(self):
        size = 64
        with mmap.mmap(-1, size, trackfd=False) as m:
            with self.assertRaises(ValueError):
                m.size()
            if hasattr(m, 'resize'):
                with self.assertRaises(ValueError):
                    m.resize(size // 2)
            self.assertEqual(len(m), size)
            m[0] = ord('a')
            assert m[0] == ord('a')

    def test_bad_file_desc(self):
        # Try opening a bad file descriptor...